2 February 2024
⇐20240201 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20240203⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W09S45
(114",-607") 		E30-W29
(59) 		4.6 1.6 1.4e21
2 W35N58
(298",866") 		W22-W46
(24) 		0.2 -0.9 -9.8e19

Note: Solar Monitor's coronal hole segmentations are performed by CHIMERA, a copy of which is available at: github.com/TCDSolar/CHIMERA.

The operations of the CHIMERA algorithm is described in a peer reviewed paper: arxiv.org/abs/1711.11476.

An extensive copy of coronal hole properties are available at: solarmonitor.org/data.

The latest positions of the coronal holes are given in heliocentric co-ordinates, and the region positions are valid on 2-Feb-2024 20:30 UT .